The USGeological Survey and the National Weather Service Work Together to to

The U.S.Geological Survey and the National Weather Service work together to

A) Alert the public about impending flash flooding by using drainage basin characteristics (USGS) and meteorological events (NWS) to predict areas and timing where rapid water level rise may occur.
B) Judge the amount of sedimentation that will fill a river channel in a year and thus help in flood forecasting.
C) Keep public officials informed about the narrowing or widening of the 100-year floodplain in upstream drainage basins.
D) Inform insurance companies that provide flood insurance to individuals about locations where flooding is most probable.